Valve



Nov. 21, 1933. E. H. HANSEN ETk A1., 1,936,301

VALVE Filed Nov. 16, 1932 IIIIIII! Patented Nov.214,1933 y Y Y 1,936,301

VALVE Edward H. Hansen and Elwood E. Hansen, Elkhart, Ind., assignors to Elkhart Brass Mfg. Co., Elkhart, Ind., a corporation of Indiana Application November 16, 1932 Serial No. 642,954

Claims. (C1. 251-152) This invention relates to improvements in valves justed, the set screw 22 locks the same against and, more especially, a valve with an adjustable rotation. 1 stop means limiting the maximum opening of the 23 indicates a second collar threaded on the valve. threads 18 on the stem support 16. It is to be 5 Among the features of our invention is the pro'- understood that the pitch of the threads 18 is 60 vision of such adjustable stop means that is simthe same as the pitch of .the threads inside of ple and eincient in construction and operation. the valve controlling the movement of the stem Another feature of our invention is the provi- 13. The collar 23 is connected to the handle sion in combination with the adjustable stop by the vertical bar 24 which is provided with l0 means of breakable means rendering said stop a weakened portion 24a to make the same break- 65 means inoperative. able under strain.

The invention is particularly applicable for use In the operation of the valve, the collar 19 is in connection with valves on lire protection standadjusted at the desired height. When the valve pipes in buildings. In this connection, it is freis opened by screwing up the handle 15, the col- 15 quently necessary or desirable to adjust the valve lar 23 is screwed up with it until it engages the 7b on each floor to a certain opening so that the adjustable stop means which is the collar 19. pressure delivered on that floor will not exceed The maximum opening of the valve is thus limthe desired amount. By the use of our invention, ited. Additional strain on the handle 15, howvalves may be installed on such a standpipe and ever, will serve to break the bar 24 at the point 20 each one adjusted to deliver the desired pressure. 24a so that the handle 15 may be further oper- 75 Other features and advantages of our invenated to open the valve to its fullest extent. The tion will appear more fully as we proceed with portion 24a of the bar 24 may be weakened so our specification. that it will break with any additional or exces- In that form of device embodying the features sive strain desired.

25 of our invention shown in the accompanying The stem support 16 may be provided with a 80 drawingflattened portion 16a containing calibrations 16b Figure l is a view in side elevation with a porto show the position at which the valve is adtion broken away; Fig. 2 is a view taken as indijusted. cated by the line 2 of Fig. 1; and Fig. 3 is a View While we have shown and described certain taken as indicated by the line 3 of Fig. 2. embodiments of our invention, it is to be under- 85 As shown in the drawing, the valve includes stood that it is capable of many modifications.

a, fluid chamber 1o with an inlet opening 11 and Changes, therefore, in the construction and aran outlet 12. rangement may be made without departing from The valve is provided with the usual rotatable the spirit and scope of the invention as disclosed stem 13 attached to a closure member inside of in the appended claims, in which it is our inten- 90 the valve, for example, the usual dSC, gate, 0r tion to claim all novelty inherent in our inventhe like. As here shown, the closure member is tion as broadly as permissible, in view of the the disc 14 which seats upon a suitable seat. l5 prior art. indicates the usual handle attached to the stem What we regard as new, and desire to seeure 13. 16 indicates the substantially cylindrical stem by Letters Patent, is; 95 support attached to the fluid chamber 10 which 1 A valve, including; a fluid chamber with carries the usual pakrlg 111113 17 at its Upper endan inlet and outlet; a closure member in the As here shown, the Stern Support 16 iS provided fluid chamber; a rotatable and longitudinally with external threads 18 on which is mounted movable stem attached to the closure member; a

an adjustable collar 19. The stem SuDDOrt 16 handle attached to the stem; a substantially 100 is also provided with vertical grooves 20 which cylindrical stem support attached to the fluid interrupt the threadS 13- The 001121' 19 iS DIO- chamber; an adjustable collar on the stem supvided with an internally threaded boss 21 in port; a second collar on the stem support bewhich is mounted the Set Screw 22. The inner tween the first-mentioned collar and the fluid end of this set screw is reduced in diameter so chamber and movable longitudinally of said sup-105 that when the same is screwed in, it will engage port; and a connection between and fastened to one of the slots 20. There are six of these slots the second-mentioned collar and the handle. provided so that by means of the set screw 22, 2. A valve, including; a fluid chamber with an the collar 19 may be adjusted in various posiinlet and outlet; a closure member in the fluid tions on the stem support 16. When thus adchamber; a rotatable and longitudinally mov- 110 3. A valve as claimed in claim 1, in which the adjustable collar is threaded on the stem support.

4. A valve as claimed in claim 1, in which the second-mentioned collar is threaded on the stem SllpPQrt- "5'." /jalyg as claimed in claim 1, in Whh both colas are threaded on the "stem support.

EDWARD H. HANSEN. ELWOOD E. HANSEN. 

